TL494 Pulse Width Modulation Controlle IC

TL494 Pulse Width Modulation Controller IC

The TL494 Pulse Width Modulation (PWM) Controller IC is a versatile and highly integrated IC used in the control of power supplies, specifically in applications requiring DC-to-DC and AC-to-DC conversion. It provides a robust solution for power regulation and is widely used in power management applications such as inverters, switch-mode power supplies (SMPS), and motor control systems. The TL494 IC features an integrated PWM controller that is capable of controlling the duty cycle of a pulse-width modulated signal, which adjusts the power supplied to the load by varying the width of the pulse. This control mechanism is essential for efficiently managing power in switch-mode circuits. The IC uses an internal oscillator to generate PWM waveforms, with adjustable frequency and dead time, which provides flexibility in tuning the power conversion process. Key features of the TL494 include dual output drivers, which allow for push-pull operation, and the ability to operate in both voltage-mode and current-mode control, giving it excellent versatility in different power supply designs. It also includes error amplifiers, overcurrent protection, soft-start circuitry, and pulse-by-pulse current limiting, ensuring reliable operation and protection in a wide variety of applications.

Features:-

• High-Speed Operation
• Wide Operating Voltage Range 
• Low Power Consumption
• Compact SMD package
• Circuit Architecture Allows Easy Synchronization
• Uncommitted Outputs for 200-mA Sink or Source Current
• Output Control Selects Single-Ended or Push-Pull Operation